Upcycling a Vintage Microphone into an Emergency Radio System @element14presents
Upcycling a Vintage Microphone into an Emergency Radio System  @element14presents
Uploaded April 2025 | Updated September 2026, 2 weeks ago
Clem attempts to create an audio transmission system using two old microphones, exploring the process of converting audio into a digital signal via pulse-width modulation (PWM). He encounters difficulties in getting the analog system to function properly, detailing the use of low-pass filters, amplifiers, and comparator circuits to modulate audio onto a carrier frequency. Clem shares his understanding of the theory behind the project but admits that the system doesn't quite work as planned.

He asks viewers for feedback on whether to continue with the analog approach or shift to a digital solution, with all related schematics and files available for download on the element14 Community: bit.ly/4iuFYsE

#analogaudio #diyelectronics #PulseWidthModulation #electronicsproject

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Upcycling a Vintage Microphone into an Emergency Radio System

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